scholarly journals Acid Black 172 Dye Decolorization and Bioelectricity Generation by Microbial Fuel Cell with Filamentous Fungi on Anode

2018 ◽  
Vol 15 (4) ◽  
pp. 981-986 ◽  
Author(s):  
Mohamed E. Osman ◽  
Om-Kolthoum H. Khattab ◽  
Abo Elnasr A.A. ◽  
Abdel Basset S.
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Filamentous Fungi ◽  
Dye Decolorization ◽  
Open Circuit ◽  
Anode Chamber ◽  
Variable Parameters ◽  
Fuel Cell Performance ◽  
Maximum Current ◽  
Double Chamber

A microbial fuel cell (MFC) has great potential for azo dyes decolorization and electricity generation by using filamentous fungi as biocatalysts. In this study, Aspergillus niger and Trichoderma harzianum were inoculated in anode chamber of double-chamber MFC to decolorize azo dye acid black 172 with Potassium Ferricyanide in the cathode chamber. During MFC operations, Acid black 172 oxidized and produced a maximum open-circuit voltage of 890 mV, and maximum current density of 163 mA/m2 with an external resistance of 1000Ω. Also, variable parameters such as dye concentration, Co-substrate and dye as a sole carbon source were studied to improve microbial fuel cell performance.

scholarly journals INFLUENCE OF CARBON BASED ELECTRODES ON THE PERFORMANCE OF THE MICROBIAL FUEL CELL

2017 ◽  
Vol 5 (4RAST) ◽  
pp. 7-16
Author(s):  
Omkar S Powar ◽  
Lakshminarayana Bhatta ◽  
Raghavendra Prasad ◽  
Krishna Venkatesh ◽  
A.V. Raghu
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
High Power ◽  
Microbial Fuel Cells ◽  
Bacillus Coagulans ◽  
Open Circuit ◽  
Carbon Cloth ◽  
Anode Chamber ◽  
Graphite Sheet ◽  
Fuel Cell Performance

In this study electricity generation was evaluated in a two chambered microbial fuel cell. Performance of microbial fuel cells using two bacteria, Klebsiella pneumoniae and Bacillus coagulans and using three different electrodes namely graphite blocks, carbon cloth and graphite sheet was studied. The device was operated under anaerobic condition in the anode chamber and parameters were recorded for a period of 48 hours. The performance of MFC was analyzed by the measurement of open circuit voltage, polarization curves, impedance curves and cyclic voltammetry. Among different combinations of electrode tested, carbon cloth electrode produced high power density (80 mW/m2). Graphite block gave much high power compared to sheet. Finally, performance was compared with Shewanellaputrefaciens. The current study explores the applicability of carbon electrode for MFC applications.

Different types of carbon nanotube-based anodes to improve microbial fuel cell performance

2014 ◽  
Vol 69 (9) ◽  
pp. 1900-1910 ◽  
Author(s):  
N. Thepsuparungsikul ◽  
T. C. Ng ◽  
O. Lefebvre ◽  
H. Y. Ng
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Open Circuit ◽  
Hydroxyl Group ◽  
Innovative Technology ◽  
Carboxyl Group ◽  
Carbon Cloth ◽  
Filtration Method ◽  
Oh Groups ◽  
Fuel Cell Performance

The microbial fuel cell (MFC) is an innovative technology for producing electricity directly from biodegradable organic matter using bacteria. Among all the influenceable factors, anode materials play a crucial role in electricity generation. Recently, carbon nanotubes (CNTs) have exhibited promising properties as electrode material due to their unique structural, and physical and chemical properties. In this study, the impacts of CNT types in CNT-based anodes were investigated to determine their effect on both efficiency of wastewater treatment and power generation. The CNTs, namely single-walled CNT with carboxyl group (SWCNT), multi-walled CNT with carboxyl group (MWCNT-COOH) and multi-walled CNT with hydroxyl group (MWCNT-OH) were used to fabricate CNT-based anodes by a filtration method. Overall, MWCNTs provided better results than SWCNTs, especially in the presence of the -OH groups. The highest power and treatment efficiencies in MFC were achieved with an anode made of MWCNT-OH filtered on Poreflon membrane; the open circuit voltage attained was 0.75 V and the maximum power density averaged 167 mW/m2, which was 130% higher than that obtained with plain carbon cloth. In addition, MWCNT-OH is more cost-effective, further suggesting its potential to replace plain carbon cloth generally used for the MFC anode.

Salinity Effect on the Microbial Fuel Cell Performance

2014 ◽  
Vol 651-653 ◽  
pp. 1365-1369
Author(s):  
Luo Yong ◽  
Heng Yun Wu ◽  
Juan Juan Jia ◽  
Xiu Feng Li ◽  
Qi Ming Zhang ◽  
...  
Keyword(s):  
Power Generation ◽  
Community Structure ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Anode Chamber ◽  
Salt Solutions ◽  
Salinity Effect ◽  
Fuel Cell Performance ◽  
Maximum Value ◽  
Maximum Voltage

The objective of this study was to investigate the effects of salinity on power generation and microbial community structure in the microbial fuel cell (MFC). Three two-chamber MFCs (MFC-A, MFC-B, MFC-C) were used to conduct experiments. The MFC-A was operated sequentially using solutions of 0, 20, 40, 60, and 70 g/L NaCl in the anode chamber of the cell. The MFC-B was operated with solutions of 0 and 40 g/L NaCl and the MFC-C with solutions of 0 and 70 g/L NaCl. Results showed that the salinity inhibited power generation in all the MFCs. In the MFC-A, the maximum voltage outputs and CEs decreased from 660 to 130 mV and from 67% to 4%, respectively, with the NaCl concentrations from 0 to 70 g/L. However, the NaCl concentrations did not affect the removal efficiency of substrate (glucose) in the MFC, which reached 100% at the end of every cycle. Moreover, voltages could be recovered to the maximum value (630 mV) within 60 h after replacing the salt solutions with water. With the solutions of 40 and 70 g/L NaCl in the MFC-B and MFC-C, respectively, no obvious electricity was generated after two cycle operations.

Simultaneous sewage treatment and electricity generation in membrane-less microbial fuel cell

2008 ◽  
Vol 58 (1) ◽  
pp. 37-43 ◽  
Author(s):  
M. M. Ghangrekar ◽  
V. B. Shinde
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Synthetic Wastewater ◽  
Septic Tank ◽  
Anaerobic Sludge ◽  
Anode Chamber ◽  
Maximum Current ◽  
Term Performance

Long term performance of mediator-less and membrane-less microbial fuel cell (ML-MFC) was evaluated for treatment of synthetic and actual sewage and electricity harvesting. The anode chamber of ML-MFC was inoculated with pre-heated mixed anaerobic sludge collected from a septic tank. The ML-MFC was operated by feeding synthetic wastewater for first 244 days, under different organic loading rates, and later with actual sewage for next 30 days. Maximum chemical oxygen demand (COD) removal efficiency of 91.4% and 82.7% was achieved while treating synthetic wastewater and actual sewage, respectively. Maximum current of 0.33 mA and 0.17 mA was produced during synthetic and actual sewage treatment, respectively. Maximum power density of 6.73 mW/m2 (13.65 mW/m3) and maximum current density of 70.74 mA/m2 was obtained in this membrane-less MFC with successful organic matter removal from wastewater.

Improved microbial fuel cell performance by encapsulating microbial cells with a nickel-coated sponge

2013 ◽  
Vol 41 ◽  
pp. 848-851 ◽  
Author(s):  
Xueying Liu ◽  
Xiaoyu Du ◽  
Xia Wang ◽  
Naiqiang Li ◽  
Ping Xu ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Cell Performance ◽  
Microbial Cells ◽  
Fuel Cell Performance

A Model of a High-Temperature Direct Methanol Fuel Cell

2013 ◽  
Vol 10 (5) ◽  
Author(s):  
K. Scott ◽  
S. Pilditch ◽  
M. Mamlouk
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Proton Exchange Membrane ◽  
Open Circuit ◽  
Proton Exchange ◽  
Cell Performance ◽  
Effect Of Temperature ◽  
Fuel Cell Performance ◽  
Direct Methanol ◽  
Methanol Fuel Cell

A steady-state, isothermal, one-dimensional model of a direct methanol proton exchange membrane fuel cell (PEMFC), with a polybenzimidazole (PBI) membrane, was developed. The electrode kinetics were represented by the Butler–Volmer equation, mass transport was described by the multicomponent Stefan–Maxwell equations and Darcy's law, and the ionic and electronic resistances described by Ohm's law. The model incorporated the effects of temperature and pressure on the open circuit potential, the exchange current density, and diffusion coefficients, together with the effect of water transport across the membrane on the conductivity of the PBI membrane. The influence of methanol crossover on the cathode polarization is included in the model. The polarization curves predicted by the model were validated against experimental data for a direct methanol fuel cell (DMFC) operating in the temperature range of 125–175 °C. There was good agreement between experimental and model data for the effect of temperature and oxygen/air pressure on cell performance. The fuel cell performance was relatively poor, at only 16 mW cm−2 peak power density using low concentrations of methanol in the vapor phase.

scholarly journals Feasibility study of simultaneous azo dye decolorization and bioelectricity generation by microbial fuel cell-coupled constructed wetland: substrate effects

RSC Advances ◽  
2017 ◽  
Vol 7 (27) ◽  
pp. 16542-16552 ◽  
Author(s):  
Zhou Fang ◽  
Sichao Cheng ◽  
Hui Wang ◽  
Xian Cao ◽  
Xianning Li
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Constructed Wetlands ◽  
Microbial Fuel Cells ◽  
Azo Dye ◽  
Dye Decolorization ◽  
Dye Wastewater ◽  
Substrate Effects ◽  
Bioelectricity Generation ◽  
Azo Dye Decolorization

Microbial fuel cells (MFCs) were embedded into constructed wetlands to form microbial fuel cell coupled constructed wetlands (CW-MFCs) and were used for simultaneous azo dye wastewater treatment and bioelectricity generation.

Role of Biocatalyst in Microbial Fuel Cell Performance

2019 ◽  
pp. 85-105
Author(s):  
M. Amirul Islam ◽  
Ahasanul Karim ◽  
Puranjan Mishra ◽  
Che Ku Mohammad Faizal ◽  
Maksudur Rahman Khan ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Cell Performance ◽  
Fuel Cell Performance
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